Wall clip



Aug. 13, 1929.

M T. CHAMBE RLAIN WALL CLIP Filed- March 10, 1928 fia Zhwenfor I "/VJW MTLZ MBMLHM (Ittorneg MAR-TIN 'r. CHAMBERLAIN, or aonrn'r, rumors.

WALL our Application filed March 10, 192B. SeriaLNo. 260,651.

My present invention relates to improvements in wall clips designed especially for use in connection with fibrous slabs for the purpose of fastening them together at their joints.

The wall clips are designed to extend transversely through the slab or wall, or partition, and the opposite ends of the clip are designed to be partly or wholly embedded in the fibrous slabs and then covered by plaster orother wall covering that is applied in usual manner to the aces of the walls formed over the clamped slabs.

The primary object of the invention is the provision of an inexpensive but highly efiicient device of this character which is applicable for use with various thicknesses and shapes of slabs, and which will insure a firm grip upon the opposite faces of the walls of partitions formed by the use of the slabs.

The invention consists in certain novel combinations and arrangements of parts as invention.

Figure 1 is a face view showing a pair of adjoining fibrous slabs clamped together by one of the clips of my invention.

Fig. 2 is a sectional detail View of the device of Fig. 1.

Fi 3 is a sectional detail view of a modified orm of the invention.

Fig. 4 is a perspective view showing a wall clip adapted to a wall and partition structure. 4

In Fig. 1 the two abutting slabs A and B are indicated as fashioned of fibrous material which is to some extent pliable and the surface of these slabs may be penetrated by the clamping plate 1 to secure the wall clip in rigid position. The clamping plates 1 are used in pairs as indicated and while they are shown in circular form it will be apparcut that other shapes may be used if desired.

In order to reduce weight of the plates and to provide anchoring means for the plaster. or wall covering applied to the faces of the slabs the clamp. plates are perforated as at 2. At the center. of the plate a center hole 3 1s provlded and at the periphery of the plate an annular flange 4 which is slightly turned in is fashioned so that when the plate 1s clamped against the face of the fibrous wall this flange will penetrate or embed it-- self in the "face of the slabs in addition to the central portionof the clamp plates. In this manner the opposing plates at opposite sides of the wall or partition structure are rigidly securedin the faces of wall or partition. In combination with the clamp plates I use a pair-of cupped clamp disks 5 fashioned of metal, as-are also the clamp plates fashioned of metal, and this cupped disk has a countersunk center 6'in which a bolt hole 7 is provided. These cupped "disksare used in pairs with the clamp plates and they are seated in the center holes 3 of the plates andconnected by a tie bolt or other fastening means as 8. The bolt is fashioned with a head 9 located in the countersunk or cupped disk 5 and on the threaded end of the bolt a nut 10 is located in the countersunk orcupped disk at the opposite side of the wall. Thus it will be apparent that when the bolt 8 is passed through the joint between the slabs A and B with the clamp plates and clamp disks put in proper place, then by turning nut 10 the opposing clamp plates are firmly gripped into and partially or wholly embedded in the opposite faces of the slabs A and B to provide a firm and secure joint.

In Fig. 3 the modified form of thev device is shown wherein a pair of concavo-convex clamp plates 11 are used on the tie bolt 8, and these plates are fashioned with the anchoring perforations 12. At their centersthese concavo-convex clamp plates are countersunk as at 13 and provided with bolt holes 14 in order to accommodate the clamp bolts 8 and their respective heads and nuts 9 and 10. The same effect as the annular flanges 4 in Figs. 1 and 2 is secured by the use of concavo-convex clamp plates 11 in Fig. 3, and the annular edges together with the central portion of these clamp plates are embedded in the faces of the fibrous slabs. Should the plates be placed against the faces having. irregularities in them, it will he a parent that as the nut 10 is turned home t e opposing plates will be caused to uniformly penetrate the opposite faces of the structure and thus compensate for the irregularities. Should the slabs vary slightly in thickness these variations also may be compensated for by drawing the ilrates toward each other with the tie bolt. Fig. 4 I have indicated by dotted lines a wall structure C and a partition structure D disposed at right an les, and these structures are jointed by we 1 clips fashioned from integral angle plates 15 and 16 that are provided with the anchoring rforations 2 and also with the cupped dis 5 and tie bolts 9 and with the nuts 10. It will be apparent that the angle clamps will be used in pairs, and with this pair of angle clamps another pair of clamp plates are used, or a single clamp plate may be used in lieu of the latter pair of plates.

By the utilization of the wall clips of my invention, thin partitions may be erected in building structures and the partitions are provided with the desired rigidity, soundproofing and of extremely light weight. The partitions 'or walls made from the fibrous slabs may be laid with rapidity and it will be apparent that the wall clips takethe place of mortar in the joint. The sections or slabs thus incorporated in the partition or wall maybe trued and alined with facility prearatory to adding the plaster or face covermg to the walls or partitions, and a minimum amount of labor and time are required for laying up the wallor partition having the wall clips embedded therein.

The wall clips may be used to clamp a plurality of fibrous slabs at their meeting amass:

points and as illustrated in the drawings slabs forming walls or partitions in different planes may also be joined.

The clamp plates, it will be apparent, may be fashioned in an inexpensive manner and they may be made from scrap pieces of material without the necessity for use of ex- W staggered so that the wall clips will engage I three different slabs, thus insuring a strong and durable wall structure.

Having thus fully described my invention, what I claim is new and desire to secure by Letters Patent is:

A wall cli comprising a pair of spaced perforated 0 amp plates having inturned annular flanges and an open center, a cupped disk having a bolt hole and located in each of the open centers, and a tie bolt connecting said cupped disks and provided with a head and nut on its respective ends whereby a spring action is obtained when the annular flanges bite into the slab.

In testimony whereof I aflix my signature.

' MARTIN T. CHAMBERLAIN. 

